Hail, death knight. I am the blood lord, Keleseth, ruler of the southeastern reaches of Northrend. The Lich King has sought to utilize my talents in ending this mortal affront to the Scourge. As with all things the Lich King asks of me, I am happy to oblige. Of course, a sea of endless souls to sate my thirst certainly sweetened the deal, don't you think?